期刊
ACS PHOTONICS
卷 5, 期 1, 页码 233-239出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.7b00661
关键词
strong coupling; exciton-polaritons; plasmonics lattice; organic fluorophores; anisotropic dispersions
类别
资金
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) through the project LEDMAP of the Technology Foundation STW
- Industrial Partnership Program Nanophotonics for Solid State Lighting
- Philips
- European Research Council [ERC-2011-AdG-290981, ERC-2016-STG-714870]
- Spanish MINECO [MAT2014-53432-05-5-R, FIS2015-64951-R]
- Maria de Maeztu program for Units of Excellence in RD [MDM-2014-0377]
When the electromagnetic modes supported by plasmonic-based cavities interact strongly with molecules located within the cavity, new hybrid states known as plasmon-exciton-polaritons (PEPs) are formed. The properties of PEPs, such as group velocity, effective mass, and lifetime, depend on the dispersive and spectral characteristics of the optical modes underlying the strong coupling. In this work, we focus on lattice modes supported by rectangular arrays of plasmonic nanoparticles known as surface lattice resonances (SLRs). We show that SLRs arising from different in-plane diffraction orders in the lattice can couple with the molecular excitons, leading to PEPs with distinct dispersions and thus different group velocities. These results illustrate the possibility of tailoring the transport of PEPs through the design of lattices of plasmonic particles.
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